CRYPTOGAMS 



447 



FIG. 407. Aspidium Jttix mas. ( nat. size). A, Sorus in vertical section (x 20, after KNV) ; 

 B, Pinna 1 with young sori still covered by the indusia' C, somewhat older sori with withered 

 indusia. (Slightly magnified.) OFFICIAL. 



smaller and less profusely branched, standing in groups in the centre of a rosette 

 of large foliage leaves. 



